520520852 has 6 divisors (see below), whose sum is σ = 910911498. Its totient is φ = 260260424.

The previous prime is 520520851. The next prime is 520520863. The reversal of 520520852 is 258025025.

It can be written as a sum of positive squares in only one way, i.e., 520022416 + 498436 = 22804^2 + 706^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520520851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65065103 + ... + 65065110.

It is an arithmetic number, because the mean of its divisors is an integer number (151818583).

Almost surely, 2^520520852 is an apocalyptic number.

It is an amenable number.

520520852 is a deficient number, since it is larger than the sum of its proper divisors (390390646).

520520852 is a wasteful number, since it uses less digits than its factorization.

520520852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130130217 (or 130130215 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 520520852 is about 22814.9260792140. The cubic root of 520520852 is about 804.4135496960.

Adding to 520520852 its reverse (258025025), we get a palindrome (778545877).

The spelling of 520520852 in words is "five hundred twenty million, five hundred twenty thousand, eight hundred fifty-two".